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Genome-Wide CRISPR Screen for Unveiling Radiosensitive and Radioresistant Genes
Published on: May 23, 2025
CRISPR-cas9: a powerful tool towards precision medicine in cancer treatment
Hui Xing1,2, Ling-Hua Meng3,4
1Division of Anti-tumor Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.
Abstract:
Cancer is a highly heterogeneous disease in term of molecular signature even though it is originated from the same tissue type. Cancer heterogeneity may occur during its development or treatment, which is the main cause resulting in drug resistance and recurrence. Precision medicine refers to matching the right medicine to the right patients based on their molecular signatures. Therefore, a thorough understanding of the mechanism of tumorigenesis and drug resistance is essential to precision medicine. CRISPR-cas9 system is a powerful tool for gene editing and CRISPR-based high-throughput screening has been widely applied especially in searching for tumor-driven or synergistic lethal genes aiming to overcome drug resistance. In this review, we describe the progress of CRISPR-cas9-based unbiased screening in precision medicine including identification of new drug targets, biomarkers and elucidation of mechanisms leading to drug resistance. The existing challenges as well as the future directions are also discussed.
Insights
CRISPR-cas9 screening advances precision medicine by identifying cancer drug targets and resistance mechanisms. This powerful gene editing tool aids in overcoming tumor heterogeneity and improving patient outcomes.
Area of Science:
- Oncology
- Genetics
- Biotechnology
Background:
- Cancer exhibits significant molecular heterogeneity, contributing to treatment resistance and recurrence.
- Understanding tumorigenesis and drug resistance is crucial for developing effective precision medicine strategies.
- CRISPR-cas9 gene editing offers powerful capabilities for high-throughput screening in cancer research.
Purpose of the Study:
- To review the progress of CRISPR-cas9-based unbiased screening in precision medicine.
- To highlight the role of CRISPR-cas9 in identifying novel drug targets and biomarkers.
- To elucidate mechanisms underlying cancer drug resistance using CRISPR-cas9 screening.
Main Methods:
- CRISPR-cas9-based high-throughput screening.
- Unbiased screening approaches for gene identification.
- Analysis of tumorigenesis and drug resistance mechanisms.
Main Results:
- CRISPR-cas9 screening facilitates the discovery of tumor-driving and synergistic lethal genes.
- Identification of potential new drug targets and predictive biomarkers for cancer therapy.
- Elucidation of key molecular mechanisms contributing to acquired drug resistance.
Conclusions:
- CRISPR-cas9 screening is a transformative tool in precision oncology.
- It holds significant promise for overcoming drug resistance and improving therapeutic strategies.
- Further research is needed to address current challenges and optimize applications.
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